Lantern



FIG. 1 is a perspective view of a lantern.

FIG. 2 is front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings illustrate portions of the lantern that form no part of the claimed design. 

CLAIM The ornamental design for lantern, as shown and described. 